A 55-year-old man was "wing surfing" off the coast of Australia when a humpback whale came out of the ocean and body-slammed him.
Even worse, his leash got caught under the whale and it dragged him about 30 feet under.
Luckily, the rope snapped, and that saved his life. He was able to surface uninjured
The whole thing was captured on his GoPro. Check it out here-